In Norse mythology, Freyja (Old Norse the "Lady") is a goddess associated with love, beauty, fertility, gold, seiðr, war, and death. Freyja is the owner of the necklace Brísingamen, rides a chariot driven by two cats, owns the boar Hildisvíni, possesses a cloak of falcon feathers, and, by her husband Óðr, is the mother of two daughters; Hnoss and Gersemi. Along with her brother Freyr (Old Norse the "Lord"), her father Njörðr, and her mother (unnamed in sources), she is a member of the Vanir. Stemming from Old Norse Freyja, modern forms of the name include Freya, Freja, Freyia, Frøya, and Freia.

Freyja rules over her heavenly afterlife field Fólkvangr and there receives half of those that die in battle, whereas the other half go to the god Odin's hall, Valhalla. Within Fólkvangr is her hall, Sessrúmnir. Freyja assists other deities by allowing them to use her feathered cloak, is invoked in matters of fertility and love, and is frequently sought after by powerful jötnar who wish to make her their wife. Freyja's husband, the god Óðr, is frequently absent. She cries tears of red gold for him, and searches for him under assumed names. Freyja has numerous names, including Gefn, Hörn, Mardöll, Sýr, Valfreyja, and Vanadís.

Scholars have theorized about whether or not Freyja and the goddess Frigg ultimately stem from a single goddess common among the Germanic peoples; about her connection to the valkyries, female battlefield choosers of the slain; and her relation to other goddesses and figures in Germanic mythology, including Gullveig/Heiðr, Gefjon, and Skaði. Freyja's name appears in numerous place names in Scandinavia, with a high concentration in southern Sweden. Various plants in Scandinavia once bore her name but were replaced with the name of the Virgin Mary during the process of Christianization. Rural Scandinavians continued to acknowledge Freyja as a supernatural figure into the 19th century, and Freyja has inspired various works of art.